Effect of Heat Input and M-A Constituent on Microstructure Evolution and Mechanical Properties of Heat Affected Zone in Low Carbon Steel

被引：12
|
作者：
Wang Zhuangfei [1 ]
Shi Minghao [2 ]
Tang Shuai [1 ]
Wang Guodong [1 ]
机构：
[1] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Liaoning, Peoples R China
[2] Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2017年 / 32卷 / 05期
关键词：
heat affected zone (HAZ); inclusions; impact toughness; heat input; M-A constituent; ACICULAR FERRITE; TOUGHNESS; TRANSFORMATION; NUCLEATION;
D O I：
10.1007/s11595-017-1726-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Microstructure evolution and impact toughness of simulated heat affected zone (HAZ) in low carbon steel have been investigated in this study. Thermal simulator was used to simulate microstructure evolution in HAZ with heat input of 10 - 100 kJ / cm welding thermal cycle. Results indicated that microstructure of HAZ mainly consisted of acicular ferrite (AF) inside grain and high volume fraction of grain boundaries ferrite (GBF) at prior austenite boundaries; the size of GBF and effective grain size increased with increasing heat input. Excellent impact toughness (more than 150 J at - 40 degrees C) was obtained in HAZ with heat input less than 50 kJ / cm. When heat input was 100 kJ /cm, the impact toughness of HAZ decreased to 18 J because of the presence of large M-A constituent with lath-form in HAZ, assisting the micro-crack initiation and decreasing the crack initiation energy seriously. Effect of inclusions on acicular ferrite transformation in HAZ was also discussed.
引用
收藏
页码：1163 / 1170
页数：8
相关论文
共 50 条
  • [31] Effect of initial grain size on microstructure and toughness of intercritical heat-affected zone of a low carbon steel
    Eroglu, M.
    Aksoy, M.
    [J]. Materials Science and Engineering: A, 2000, 286 (02) : 289 - 297
  • [32] Heat-affected zone microstructure and mechanical properties evolution for laser remanufacturing LZ50 axle steel
    Feng Xiangyi
    Dong Shiyun
    Fang Jinxiang
    Yan Shixing
    Xu Binshi
    Pan Fusheng
    [J]. AOPC 2017: LASER COMPONENTS, SYSTEMS, AND APPLICATIONS, 2017, 10457
  • [33] HEAT-AFFECTED ZONE MICROSTRUCTURE AND MECHANICAL PROPERTIES EVOLUTION FOR LASER REMANUFACTURING 35CrMoA AXLE STEEL
    Feng Xiangyi
    Dong Shiyun
    Yan Shixing
    Liu Xiaoting
    Xu Binshi
    Pan Fusheng
    [J]. YOUNG SCIENTISTS FORUM 2017, 2018, 10710
  • [34] Effect of heat treatment on microstructure and mechanical properties of ultrahigh carbon steel
    School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
    不详
    [J]. Jinshu Rechuli, 2006, 5 (72-75):
  • [35] The effect of the initial microstructure of the X70 low-carbon microalloyed steel on the heat affected zone formation and the mechanical properties of laser welded joints
    Gordienko, A., I
    Derevyagina, L. S.
    Malikov, A. G.
    Orishich, A. M.
    Surikova, N. S.
    Volochaev, M. N.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2020, 797 (797):
  • [36] Microstructure and mechanical properties of simulated heat affected zone of an ultrafine grain steel laser weld
    Wang, Qingfeng
    Shang, Chenjia
    Wang, Yanan
    Chen, Wayne
    [J]. PROGRESSES IN FRACTURE AND STRENGTH OF MATERIALS AND STRUCTURES, 1-4, 2007, 353-358 : 2021 - +
  • [37] Microstructure and Mechanical Properties of Heat-affected Zone of Repeated Welding on 304 Stainless Steel
    Guo, Yanhui
    Deng, Dong
    Sun, Zaozhan
    Huang, Bingchen
    [J]. Hedongli Gongcheng/Nuclear Power Engineering, 2021, 42 (04): : 198 - 202
  • [38] Mechanical properties of heat affected zone in bainitic high strength low alloy steel
    Liu, C
    Zhao, ZB
    Northwood, DO
    [J]. MATERIALS SCIENCE AND TECHNOLOGY, 2002, 18 (11) : 1325 - 1328
  • [39] Effect of Heat Input on Inclusion Evolution Behavior in Heat-Affected Zone of EH36 Shipbuilding Steel
    Jincheng Sun
    Xiaodong Zou
    Hiroyuki Matsuura
    Cong Wang
    [J]. JOM, 2018, 70 : 946 - 950
  • [40] Effect of Heat Input on Inclusion Evolution Behavior in Heat-Affected Zone of EH36 Shipbuilding Steel
    Sun, Jincheng
    Zou, Xiaodong
    Matsuura, Hiroyuki
    Wang, Cong
    [J]. JOM, 2018, 70 (06) : 946 - 950
12345